“I try to buy stock in businesses that are so wonderful that an idiot can run them. Because sooner or later, one will.”

This humorous but profound statement emphasizes the importance of a business's "underlying economics" and competitive advantage over the current quality of its management. It provides a strategic insight into the concept of a "moat," suggesting that a truly great product or brand can survive even mediocre leadership for a period. In modern entrepreneurship and investing, this encourages looking for systems and assets that have durable value regardless of the people in charge. People share this today to highlight the difference between a high-maintenance business and one that possesses inherent market dominance. Buffett uses this principle to select companies that are so well-positioned that they are resistant to the inevitable human errors of their executives. The lesson here is to invest your time and money in "self-sustaining" assets and skills that have a high margin of safety against the volatility of human performance.